Peel all the carrots and grate them finely. Pour 3 teaspoons of ghee in a frying pan. Add 6 cashews and powdered cardomoms (4).Fry till you get the smell of roasted cashews.Pour the mixture of milk and water. Add sugar. When the water comes to boil, add 1 1/2 cups of grated carrot and stir slowly and constantly in low heat until the mixture turns into a soft paste. After adding sugar, you may have to cook around 7 - 10 minutes to get the desired consistency for halwa. Do not heat the mixture too long, so as to prevent it from getting hardened.